21928880

素因数分解:

$2^4\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1019}}^1$

素因数の和:1301

約数の個数: 40

約数和(自身を含む): 51224400

約数和(自身を除く): 29295520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269, 538, 1019, 1076, 1345, 2038, 2152, 2690, 4076, 4304, 5095, 5380, 8152, 10190, 10760, 16304, 20380, 21520, 40760, 81520, 274111, 548222, 1096444, 1370555, 2192888, 2741110, 4385776, 5482220, 10964440, 21928880]

約数ペア:

[(1, 21928880), (2, 10964440), (4, 5482220), (5, 4385776), (8, 2741110), (10, 2192888), (16, 1370555), (20, 1096444), (40, 548222), (80, 274111), (269, 81520), (538, 40760), (1019, 21520), (1076, 20380), (1345, 16304), (2038, 10760), (2152, 10190), (2690, 8152), (4076, 5380), (4304, 5095)]